CN109266859A - A kind of method that high pressure leaches furnace cigarette ash difficult to understand - Google Patents
A kind of method that high pressure leaches furnace cigarette ash difficult to understand Download PDFInfo
- Publication number
- CN109266859A CN109266859A CN201811187777.8A CN201811187777A CN109266859A CN 109266859 A CN109266859 A CN 109266859A CN 201811187777 A CN201811187777 A CN 201811187777A CN 109266859 A CN109266859 A CN 109266859A
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- CN
- China
- Prior art keywords
- cigarette ash
- understand
- difficult
- high pressure
- furnace
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of methods that high pressure leaches furnace cigarette ash difficult to understand, the following steps are included: first collecting the cigarette ash in this matt furnace difficult to understand, and the calcium lignosulfonate of cigarette ash quality 2.5 ‰~5 ‰ is added into cigarette ash, the sulfuric acid solution that concentration is 100g/L~200g/L is modulated, is added in autoclave according to the ratio that solvent and solute weight ratio is 1.5~5；The solution in autoclave is reheated, the temperature of solution is made to be maintained at 120 DEG C~170 DEG C, the pressure for controlling autoclave is 0.7MPa~1.4MPa, and keeps 1h~4h；After being leached by high pressure, valuable metal zinc, copper enter solution, obtain zinc, copper products by impurity removal process, while rare precious metal stays in slag, can further recycle valuable metal therein.The present invention handles difficult leaching ash difficult to understand by the way of high pressure leaching realizes the comprehensive utilization of natural resources so that the valuable metal in furnace cigarette ash difficult to understand obtains synthetical recovery, is conducive to the pressure for alleviating resource and environment, has superior economy and ecological benefits.
Description
[technical field]
The present invention relates to a kind of methods that the technical field of metallurgical fixed-end forces more particularly to high pressure leach furnace cigarette ash difficult to understand.
[background technique]
In all kinds of hazardous wastes, heavy metal waste occupies very big ratio, they endanger ring in a wide variety of ways
Border.In processes, other than a part of recoverable, in largely requiring progress stabilization processes, to reach harmless
The purpose of change.Some metallurgy industry solid waste are due to being unable to direct emission ring containing polluters such as the heavy metals that can be leached
Border should also carry out solidification pretreatment before the disposition of final harmless to environment.But there is limitation when for heavy metal waste processing
Property, do not achieve the purpose that long term stabilization, in final disposal, it will generate secondary pollution.Meanwhile by increasing cement
When the modes such as lime carry out curing process, stability and leaching rate no doubt can be improved, but processing cost and the body after solidifying
Product is consequently increased, and is unfavorable for the benign development of enterprise.
For the processing of solid waste, relevant enterprise has done many effort, and furthers investigate processing side efficiently, environmentally friendly
Formula.Wherein, Chinese Patent Application No. is the patent of " 201510693277.1 ", and it discloses a kind of copper secondary resource melting cigarettes
The processing method of ash, uses sodium hydroxide solution pulp, and carry out multistage leaching, and process flow is complicated, and processing difficulty is big,
Material after solidification is more.And Chinese Patent Application No. is the patent of " 201510494775.3 ", it discloses a kind of smelting furnace cigarettes
The processing method of ash, first mixes cigarette ash with reducing agent, and carry out calcination process, and process flow is long, and the wasting of resources is big, consumption
When it is inefficient.
[summary of the invention]
In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a kind of method that high pressure leaches furnace cigarette ash difficult to understand,
It handles difficult leaching ash difficult to understand by using the mode that high pressure leaches, so that the valuable metal in furnace cigarette ash difficult to understand obtains synthetical recovery；Its
Turn waste into wealth, realize the comprehensive utilization of natural resources, is conducive to the pressure for alleviating resource and environment, there is superior economy
And ecological benefits.
To achieve the above object, technical scheme is as follows:
A kind of method that high pressure leaches furnace cigarette ash difficult to understand, comprising the following steps:
(1) cigarette ash in this matt furnace difficult to understand is collected, and the wooden of cigarette ash quality 2.5 ‰~5 ‰ is added into the cigarette ash
Plain sulfoacid calcium, and the sulfuric acid solution that concentration is 100g/L~200g/L is modulated, add according to the ratio that solvent and solute weight ratio is 1.5~5
Enter into autoclave；
(2) heat above-mentioned steps (1) mesohigh kettle in solution temperature, make the temperature of the solution be maintained at 120 DEG C~
170 DEG C, the pressure for controlling the autoclave is 0.7MPa~1.4MPa, and keeps 1h~4h；
(3) after being leached by high pressure, valuable metal zinc, copper enter solution, obtain zinc, copper products by impurity removal process, together
When rare precious metal stay in slag, can further recycle valuable metal therein.
Preferably, in the step (1) cigarette ash feature are as follows: the mass content of Zn be 15%~25%, Cu quality contain
It is the quality of 1.0%~4.0%, S that the mass content that amount is 1.0%~5.0%, Pb, which is the mass content of 15%~30%, Fe,
The mass content that content is 8.0%~14%, As is 1.0%~3.0%.
Further, be added in the step (1) calcium lignosulfonate quality be cigarette ash quality 3.0 ‰~
5‰。
Further, it is that lead silver stays slag that metal described in the step (3), which stays slag,.
The beneficial effects of the present invention are: (1) using metallurgy industry dangerous waste Austria furnace cigarette ash as raw material, using high pressure leaching side
Formula recycles valuable metal in cigarette ash, turns waste into wealth, and reduces the difficulty that metallurgical dangerous waste is administered, reduces the stockpiling of metallurgical cigarette ash,
Create great economic benefit；(2) by the improvement of process flow, the mode of conventional oxidation roasting, environment friend are avoided
It is good, there are good environmental and social benefits；(3) process is short, clean and effective.
[Detailed description of the invention]
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is process flow chart of the invention.
[specific embodiment]
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Now it is illustrated with three embodiments:
Embodiment 1:
200g cigarette ash is taken, 0.5g calcium lignosulfonate is added, is 1.5 according to solvent and solute weight ratio, prepares the sulfuric acid of 150g/L
Solution is added in autoclave, begins to warm to 150 DEG C, keeps the temperature 2h.Solid-liquor separation after leaching, the leaching of zinc in solution
Rate reaches 74.1%, and the leaching rate of copper reaches 57.85%, and the concentration of zinc ion reaches 114g/L in solution, is simply cleaned
Industrial Sulphuric acid zinc and Zinc electrolysis requirement can be met.
Embodiment 2:
300g cigarette ash is taken, 1.0g calcium lignosulfonate is added, is 2 according to solvent and solute weight ratio, the sulfuric acid for preparing 200g/L is molten
Liquid is added in autoclave, begins to warm to 170 DEG C, keeps the temperature 3.5h.Solid-liquor separation after leaching, the leaching of zinc in solution
Rate reaches 96.15%, and the leaching rate of copper reaches 80.3%, and the concentration of zinc ion reaches 80.17g/L in solution, is simply removed
Miscellaneous concentration can meet industrial Sulphuric acid zinc and Zinc electrolysis requirement.
Embodiment 3:
250g cigarette ash is taken, 0.8g calcium lignosulfonate is added, is 3 according to solvent and solute weight ratio, the sulfuric acid for preparing 120g/L is molten
Liquid is added in autoclave, begins to warm to 140 DEG C, keeps the temperature 1.0h.Solid-liquor separation after leaching, the leaching of zinc in solution
Rate reaches 90.83%, and the leaching rate of copper reaches 70.64%, and the concentration of zinc ion reaches 47.98g/L in solution, through simple
Removal of impurities concentration can meet industrial Sulphuric acid zinc and Zinc electrolysis requirement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of method that high pressure leaches furnace cigarette ash difficult to understand, which comprises the following steps:
(1) cigarette ash in this matt furnace difficult to understand is collected, and the sulfomethylated lignin of cigarette ash quality 2.5 ‰~5 ‰ is added into the cigarette ash
Sour calcium, and the sulfuric acid solution that concentration is 100g/L~200g/L is modulated, it is added to according to the ratio that solvent and solute weight ratio is 1.5~5
In autoclave；
(2) temperature for heating solution in above-mentioned steps (1) mesohigh kettle, makes the temperature of the solution be maintained at 120 DEG C~170
DEG C, the pressure for controlling the autoclave is 0.7MPa~1.4MPa, and keeps 1h~4h；
(3) after being leached by high pressure, valuable metal zinc, copper enter solution, obtain zinc, copper products by impurity removal process, while dilute
Noble metal stays in slag, can further recycle valuable metal therein.
2. the method that a kind of high pressure according to claim 1 leaches furnace cigarette ash difficult to understand, which is characterized in that in the step (1)
The feature of cigarette ash are as follows: the mass content of Zn is that the mass content of 15%~25%, Cu is the mass content of 1.0%~5.0%, Pb
Mass content for 15%~30%, Fe is that the mass content of 1.0%~4.0%, S is the mass content of 8.0%~14%, As
It is 1.0%~3.0%.
3. the method that a kind of high pressure according to claim 1 leaches furnace cigarette ash difficult to understand, which is characterized in that in the step (1)
The quality that the calcium lignosulfonate is added is 3.0 ‰~the 5 ‰ of cigarette ash quality.
4. the method that a kind of high pressure according to claim 1 leaches furnace cigarette ash difficult to understand, which is characterized in that in the step (3)
It is that lead silver stays slag that the metal, which stays slag,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187777.8A CN109266859A (en) | 2018-10-12 | 2018-10-12 | A kind of method that high pressure leaches furnace cigarette ash difficult to understand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187777.8A CN109266859A (en) | 2018-10-12 | 2018-10-12 | A kind of method that high pressure leaches furnace cigarette ash difficult to understand |
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| CN109266859A true CN109266859A (en) | 2019-01-25 |
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| CN201811187777.8A Pending CN109266859A (en) | 2018-10-12 | 2018-10-12 | A kind of method that high pressure leaches furnace cigarette ash difficult to understand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809057A (en) * | 2020-07-21 | 2020-10-23 | 湖北大江环保科技股份有限公司 | Method for leaching Olympic furnace smoke ash under high pressure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4921529B2 (en) * | 2009-07-29 | 2012-04-25 | パンパシフィック・カッパー株式会社 | Copper converter dust treatment method |
| CN105039724A (en) * | 2015-08-13 | 2015-11-11 | 张弘 | Smelting furnace soot treatment method |
| CN105603186A (en) * | 2016-01-24 | 2016-05-25 | 李家元 | Technology for efficiently and selectively separating zinc in zinc sulfide concentrate |
| CN107502748A (en) * | 2017-09-11 | 2017-12-22 | 中南大学 | A kind of method of Bellamya aeruginosa pressurization Strengthen education |
-
2018
- 2018-10-12 CN CN201811187777.8A patent/CN109266859A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4921529B2 (en) * | 2009-07-29 | 2012-04-25 | パンパシフィック・カッパー株式会社 | Copper converter dust treatment method |
| CN105039724A (en) * | 2015-08-13 | 2015-11-11 | 张弘 | Smelting furnace soot treatment method |
| CN105603186A (en) * | 2016-01-24 | 2016-05-25 | 李家元 | Technology for efficiently and selectively separating zinc in zinc sulfide concentrate |
| CN107502748A (en) * | 2017-09-11 | 2017-12-22 | 中南大学 | A kind of method of Bellamya aeruginosa pressurization Strengthen education |
Non-Patent Citations (2)
| Title |
|---|
| 蒋开喜: "《加压湿法冶金》", 31 January 2016 * |
| 许东: "炼铜烟灰氧压浸出铜、锌的试验研究", 《铜業工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809057A (en) * | 2020-07-21 | 2020-10-23 | 湖北大江环保科技股份有限公司 | Method for leaching Olympic furnace smoke ash under high pressure |
| CN111809057B (en) * | 2020-07-21 | 2021-04-16 | 湖北大江环保科技股份有限公司 | Method for leaching Olympic furnace smoke ash under high pressure |
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Application publication date: 20190125 |